Metal-shaping appliance.



No. 832,671. I v PATBNTED 0010,1906.

J. HIST. METAL SHAPING APPLIANCE.

APPLICATION IILBI) JAN. 27, 1906.

. M721 @ssea [212/621 $02;

7 z} c/fozmizzsz,

THE mamas PETERS co, IASHINOTDN, u. c.

UNITED STATES PATENT OFFICE.

JOHN HIST, OF ORANGE TOWNSHIP, OUYAHOGA COUNTY, OHIO, ASSIGNOR I TO THEHIST MANUFACTURING COMPANY, OF BARBERTON, OHIO, A

CORPORATION OF OHIO.

METAL-SHAPING APPLIANCE.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed January 27,1906. Serial No. 298,276-

To all whom, it may concern.-

Be it known that I, JOHN Hrs'r, a citizen of the United States ofAmerica, and a resident of Orange township, (Solon post office) countyof Cuyahoga, and State of Ohio, have invented certain new and usefulImprovements in Metal-Shaping Appliances, of which shape bars of metal,and particularly those formed of spring-steel.

In the manufacture of a potato-digging machine of my invention I havefound it very desirable to form the linked conveyingchain ofspring-steel; but, as is well known, it is necessary to shape rods ofthis material quickly and at a relatively low temperature in order toavoid impairing its qualities.

Myinvention has particularly in view the shaping of the link members ofsuch a con-.

veyer from spring-steel, although this particular application of theimprovements is simply selected as the preferred utilization thereof andis neither limited to the exact details of construction herein set forthnor to the manipulation of any particular material for forming such linkmember or other device.

The embodiment of my invention designed and adapted for the usementioned may be briefly described as consisting of a support andgripping member suitably recessed to receive the stock to be shaped, towhich member is pivoted a shaping member which is hinged to be doubledback upon itself, and thereby shaping the stock about a fillet or formsuitably positioned upon the gripping member. The details of myinvention will be gathered much more readily, however, by makingreference to the accompanying sheet of drawings, wherein Figure 1exhibits a front view of my improved metal-shaping appliance, theinitial shaping movement of its pivoted member being indicated by dottedlines. Fig. 2 shows an end view of the same device with the pivotedmember doubled back upon itself. Fig. 3 illustrates two of the linkmembers of the conveyer-chain made by means of my improved device, andFig. 4

shows an end view of the device with the pivoted member raised aftersuitably shaping the end of one of the link members.

Throughout each of the several figures I have employed the samecharacter of reference to indicate similar parts.

Referring then to Fig. 1, it will be seen that the support and grippingmember a is provided with a transverse slot at, wherein the bar or rod bof spring-steel is adapted to be securely held by means of the screw 0.Other means obviously may be employed for removably securing the rod inplace; but the screw mechanism shown is the simplest type with which Iam acquainted. At the left is provided a form or fillet a positionedforwardly, but beneath the bottom wall of the slot. The pivoted shapingmember is formed in two sections (1 d, respectively hinged upon eachother at (1 and pivoted to the support at (i the handle portion of saidmember thus being movable in a plane at right angles to the one in whichthe upper portion is actuated. Along the inner face a slide (1 isprovided which is in line with the inserted rod 1) and is adapted toengage the end thereof upon swinging said pivoted member downwardly intoits dotted-line position, Fig. 1.

Having explained the structural features of my improved device, I maynow set forth the manner in which the link members of Fig. 3 are made,as an illustration of the utility of .my improved appliance. The rod 1)is inserted in the proper position in the slot a with its left end 6extending therefrom sufficiently to form the loop or link portion of thecompleted link member. It will be understood that the end of thespring-steel rod has previously been brought to the requisitetemperature (above a cherry-red) for shaping the same. The handleportion (1 is then grasped by the user and the pivoted member is drawndownward and inward to the dotted-line position, Fig. 1, whereupon thelowermost or handle portion at is immediately bent back upon the upperportion (1 to the position shown in Fig. 2. This serves first to bendthe heated end portions 6 I) of the springsteel rod downwardly at aslightly acute angle with the body thereof and behind the form or fillet0. and then to fold the lowermost portion 1) of the rod upward aboutsaid fillet. The engaging shoulder or slide portion d is provided with aroller (2'' at the hinge (1 angle, and thus given an inward set by thefirst bending movement. When the handle portion at is turned backwardupon the upper portion (1 of the pivoted member, this lower portion bofthe rod instead of being bent directly back upon itself retainspractically its initial set, the end thereof sliding slightly toward theright within the slide portion d and assuming the fixed relation orposition indicated in the drawings, Fig. 3. In other words, theinwardly-bent end I) of the rod not being rigidly held. in the shapingappliance slips somewhat toward the right within the slide or engagingportion d, and thus provides the desired clearance forjoining the linkmembers, as shown. A similar operation, it will be understood, isperformed upon the other end of the rod in order to complete the linkmember, whereupon it may be released from the support and the operationrapidly repeated with successive rods of sprin -steel. Accordingly itwill be appreciate that the appliance of my invention is capable of veryrapidly and accurately shaping spring-steel or other rods before theyhave lost sufficient heat to render this operation difficult, and sucharticles as the link members shown may be made exact duplicates of oneanother.

Having now described an appliance embodying my invention and the mannerof using the same, I claim as new, and desire to secure by LettersPatent, the following:

1. In an appliance of the class described, the combination with asupport, of means for securing the stock or rod operated upon, a pivotedshaping member attached to said support, adapted to bend the stock aboutthe support in a given plane; said member being jointed in one portionto permit it thereafter to bend the stock or rod in a different plane,substantially as set forth.

2. In an appliance of the class described,

the combination with a support adapted to be rigidly secured, of meansassociated therewith for clampingi'therein the stock or bar, a

shaping member pivoted to said support and having movement as awhole ina given plane,

whereby the rod may be bent or shaped within that plane; said memberbeing jointed to swing upon itself, and thereby bend the rod paclfl in adifferent plane, substantially as set ort 3. In a metal-shapingappliance," the combination With a recessed support, suitable means forgripping a rod therein, a fillet or extended part provided upon saidsupport,

and a shaping member pivoted to the support in position to bend the rodat an acute angle; said member being jointed or hinged to turn vbackupon itself, whereby the rod may be shaped about the mandrel to give ita loop form, substantially as set forth.

4. In a metal-shaping appliance, the'combination with a recessedsupport, suitable means for gripping a rod therein, a fillet or extendedpart provided upon said support, and a shaping member pivoted to thesupport in position to bend the rod at an acute angle; said member beingjointed or hinged to turn back upon itself, and having an enstock at anacute angle in a given plane, and i;

means for bending the bar or stock approximately back upon itself in adifferent plane;

said bar being permitted to move laterally and being free andunrestrained in that direction, whereby the initial bend or set of thebar is availed of to provide a deflection or clearance in the loop thusformed, substantially as set forth.

Signed at Cleveland, this 24th day of J anuary, 1906, in the presence oftwo'subscribing witnesses.

JOHN HIST. Witnesses:

J. D. MALLOY, ALBERT LYNN LAWRENCE.

